Skeuos CSS is a lightweight Neumorphism UI Framework to quickly create a Neumorphic (Soft) UI style web application using pure CSS. How to use it:1. Download and insert the main stylesheet skeuos.css from the CSS folder. That’s it. <link rel="stylesheet" href="css/skeuos.css" />2. Customize the Skeuos CSS by overriding the default variables at the beginning of the skeuos.scss. $red: #E43030; $gree